The following questions are based on the description below.
A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise one hemisphere of the embryo seem to be rotated 45 degrees and lie in the grooves between larger, underlying cells (spiral cleavage).
-Which of the following statements concerning animal taxonomy is (are)True?
1) Animals are more closely related to plants than to fungi.
2) All animal clades based on body plan have been found to be incorrect.
3) Kingdom Animalia is monophyletic.
4) Only animals reproduce by sexual means.
5) Animals are thought to have evolved from flagellated protists similar to modern choanoflagellates.
A)5
B)1, 3
C)2, 4
D)3, 5
E)3, 4, 5

Question

Quizplus · Accepted Answer

1) False - Animals and plants are in different kingdoms and are not closely related.
2) False - While some animal classifications have been revised, many clades based on body plan are still valid.
3) True - Kingdom Animalia is a monophyletic group, meaning all animals share a common ancestor.
4) False - While sexual reproduction is common in animals, some also reproduce asexually.
5) True - The hypothesis that animals evolved from flagellated protists, specifically choanoflagellates, is widely accepted in the scientific community.

The Following Questions Are Based on the Description Below